President Barack Obama and first lady Michelle Obama will visit with families of victims of the Washington Navy Yard shooting on Sunday and attend a memorial at the Marine Barracks Washington, the White House said.

Refinishing work on the Martin Luther King Jr. Memorial should be complete by the upcoming 50th anniversary of the March on Washington, officials said Thursday, allaying earlier concerns that work wouldn’t be done in time.

Scrapping a disputed design for a planned Dwight D. Eisenhower Memorial near the National Mall and developing an alternate concept over the next five years would cost about $17 million, analysts have found.

A federal commission charged with building a national memorial honoring President Dwight D. Eisenhower voted unanimously Wednesday to approve architect Frank Gehry’s design for a park near the National Mall, allowing the project to move forward over the objections of Eisenhower’s family.